题目内容
(请给出正确答案)
[单选题]
某钢尺名义长度为30m,检定时的实际长度为30.012米,用其丈量了一段23.586m的距离,则尺长改正数应为()
A.–0.012m
B.–0.009m
C.0.009m
D.0.012m
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A.–0.012m
B.–0.009m
C.0.009m
D.0.012m
A.–0.012m
B.0.012m
C.–0.009m
D.0.009m
A.0.004m
B.0.007m
C.0.008m
D.0.009m
A.使距离短了0. 05m
B.使距离长了0.05m
C.使距离短了0. 5m
D.使距离长了0.5m
A.用该尺所量的距离越长,误差产生相互抵消,累计误差越小
B.用该尺所量的距离越长,累计误差越大
C.不能使用改尺量距
D.只能用该尺丈量较短的距离
A.65.366m
B.65.351m
C.65.365m
D.65.364m
(A)54.040m
(B)54.031m
(C)54.022m
(D)54.036m
A.64.248m
B.64.312m
C.64.321m
D.64.284m
A.54.040m
B.54.031 m
C.54.022m
D.54.036m